[pybindings] fix paths if omim-builddir is a relative path
[pybindings] fix paths if omim-builddir is a relative path

mapsme/omim,mpimenov/omim,milchakov/omim,milchakov/omim,darina/omim,mpimenov/omim,mapsme/omim,darina/omim,matsprea/omim,mapsme/omim,mpimenov/omim,milchakov/omim,milchakov/omim,milchakov/omim,matsprea/omim,mpimenov/omim,milchakov/omim,mapsme/omim,milchakov/omim,milchakov/omim,darina/omim,mapsme/omim,milchakov/omim,mapsme/omim,darina/omim,darina/omim,milchakov/omim,mapsme/omim,mapsme/omim,darina/omim,mpimenov/omim,matsprea/omim,darina/omim,darina/omim,darina/omim,mapsme/omim,mpimenov/omim,matsprea/omim,mpimenov/omim,mapsme/omim,matsprea/omim,mpimenov/omim,mpimenov/omim,matsprea/omim,mapsme/omim,mpimenov/omim,milchakov/omim,milchakov/omim,mapsme/omim,darina/omim,matsprea/omim,darina/omim,milchakov/omim,matsprea/omim,mpimenov/omim,darina/omim,mapsme/omim,darina/omim,mpimenov/omim,mpimenov/omim,matsprea/omim,matsprea/omim